Whitehead RG. Influence of maternal diet on plasma-prolactin during lactation. Lancet 1980 ;i:623-5. 15 Tyson JE, Perez A, Zanarty J. Human lactational response to oral thyrotropin releasing hormone. J7 Clin Endocrinol Metab 1976;43:760-8. '6 Ylikorkala 0, Kivinen S, Kauppila A. Oral administration of TRH in puerperal women: effect on insufficient lactation, thyroid hormones and the responses of TSH and prolactin to intravenous TRH. Acta Encrinol (Copenh) 1980;93:413-8. Abstract The influence

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... personality traits on the reaction of patients to upper gastrointestinal endoscopy was studied prospectively in 86 patients. High N (neuroticism) scores on the Eysenck personality inventory were associated with poor tolerance to and future compliance with the procedure. Although premedication with diazepam did not affect the degree of discomfort and distress during the procedure, it guaranteed acceptance of repeat endoscopy by virtue of its strong amnesic effect. By contrast, not giving premedication to patients who were anxious and had high N scores jeopardised future compliance. These findings suggest that a version of the Eysenck personality inventory should be used to assess patients' neurotic phenotype and their need for premedication before endoscopy. Alternatively, all patients might be given premedication.